tests: check whether gnutls_credentials_set() can be set in an hsk hooktmp-improved-vhost-documentation-tests

This is useful when these are set during the handshake process
on the handshake hook before client hello is parsed.

Relates #382

Signed-off-by: Nikos Mavrogiannopoulos <nmav@redhat.com>

2 files changed, 146 insertions, 1 deletions

diff --git a/tests/Makefile.am b/tests/Makefile.am
index 95f7f8db96..14a5c2cc05 100644
--- a/tests/Makefile.am
+++ b/tests/Makefile.am
@@ -115,7 +115,7 @@ ctests = mini-record-2 simple gc set_pkcs12_cred cert certuniqueid tls-neg-ext-k
 	 mini-record mini-dtls-record mini-handshake-timeout mini-record-range \
 	 mini-cert-status rsa-psk global-init sec-params sign-verify-data \
 	 fips-test mini-global-load name-constraints x509-extensions \
-	 long-session-id mini-x509-callbacks-intr mini-dtls-lowmtu \
+	 long-session-id mini-x509-callbacks-intr mini-dtls-lowmtu set_x509_key_file-late \
 	 crlverify mini-dtls-discard init_fds mini-record-failure memset \
 	 tls-rehandshake-cert-2 custom-urls set_x509_key_mem set_x509_key_file \
 	 mini-chain-unsorted x509-verify-with-crl mini-dtls-mtu privkey-verify-broken \
diff --git a/tests/set_x509_key_file-late.c b/tests/set_x509_key_file-late.c
new file mode 100644
index 0000000000..d6041655e5
--- /dev/null
+++ b/tests/set_x509_key_file-late.c
@@ -0,0 +1,145 @@
+/*
+ * Copyright (C) 2014-2018 Nikos Mavrogiannopoulos
+ * Copyright (C) 2018 Red Hat, Inc.
+ *
+ * Author: Nikos Mavrogiannopoulos
+ *
+ * This file is part of GnuTLS.
+ *
+ * GnuTLS is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * GnuTLS is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>
+ */
+
+/* This test checks the behavior of handshake process if credentials
+ * are set prior to client hello being received but after gnutls_handshake()
+ * is called */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <assert.h>
+#include <gnutls/gnutls.h>
+#include <gnutls/x509.h>
+
+#include "eagain-common.h"
+#include "cert-common.h"
+#include "utils.h"
+
+static unsigned set_cert(gnutls_certificate_credentials_t xcred, const gnutls_datum_t *key, const gnutls_datum_t *cert)
+{
+	const char *certfile;
+	FILE *fp;
+	int ret;
+
+	certfile = get_tmpname(NULL);
+
+	fp = fopen(certfile, "w");
+	if (fp == NULL)
+		fail("error in fopen\n");
+	assert(fwrite(cert->data, 1, cert->size, fp)>0);
+	assert(fwrite(key->data, 1, key->size, fp)>0);
+	fclose(fp);
+
+	ret = gnutls_certificate_set_x509_key_file2(xcred, certfile, certfile,
+						    GNUTLS_X509_FMT_PEM, NULL, 0);
+	if (ret < 0)
+		fail("set_x509_key_file failed: %s\n", gnutls_strerror(ret));
+
+	/* return index */
+	return ret;
+}
+
+static
+int handshake_hook_func(gnutls_session_t session, unsigned int htype,
+			unsigned when, unsigned int incoming, const gnutls_datum_t *msg)
+{
+	gnutls_certificate_credentials_t xcred;
+	int idx;
+
+	assert(htype == GNUTLS_HANDSHAKE_CLIENT_HELLO);
+	assert(when == GNUTLS_HOOK_PRE);
+	assert(gnutls_certificate_allocate_credentials(&xcred) >= 0);
+
+	gnutls_certificate_set_flags(xcred, GNUTLS_CERTIFICATE_API_V2);
+	idx = set_cert(xcred, &server_ca3_key, &server_ca3_localhost6_cert_chain);
+	assert(idx == 0);
+
+	idx = set_cert(xcred, &server_ca3_key, &server_ca3_localhost_cert);
+	assert(idx == 1);
+
+	gnutls_credentials_set(session, GNUTLS_CRD_CERTIFICATE,
+				xcred);
+
+	return 0;
+}
+
+static void start(const char *prio)
+{
+	int ret, sret, cret;
+	gnutls_certificate_credentials_t xcred, clicred;
+	gnutls_session_t server, client;
+
+	global_init();
+	track_temp_files();
+
+	assert(gnutls_certificate_allocate_credentials(&clicred) >= 0);
+
+	ret = gnutls_certificate_set_x509_trust_mem(clicred, &subca3_cert, GNUTLS_X509_FMT_PEM);
+	if (ret < 0)
+		fail("set_x509_trust_file failed: %s\n", gnutls_strerror(ret));
+
+
+	success("Testing late set of credentials\n");
+
+	assert(gnutls_init(&server, GNUTLS_SERVER) >= 0);
+	gnutls_handshake_set_hook_function(server, GNUTLS_HANDSHAKE_CLIENT_HELLO,
+					   GNUTLS_HOOK_PRE, handshake_hook_func);
+	assert(gnutls_priority_set_direct(server, prio, NULL) >= 0);
+	gnutls_transport_set_push_function(server, server_push);
+	gnutls_transport_set_pull_function(server, server_pull);
+	gnutls_transport_set_ptr(server, server);
+
+	assert(gnutls_init(&client, GNUTLS_CLIENT)>=0);
+
+	assert(gnutls_credentials_set(client, GNUTLS_CRD_CERTIFICATE,
+				      clicred) >= 0);
+	if (ret < 0)
+		exit(1);
+
+	assert(gnutls_priority_set_direct(client, prio, NULL)>=0);
+	gnutls_transport_set_push_function(client, client_push);
+	gnutls_transport_set_pull_function(client, client_pull);
+	gnutls_transport_set_ptr(client, client);
+
+	HANDSHAKE(client, server);
+
+	assert(gnutls_credentials_get(server, GNUTLS_CRD_CERTIFICATE, (void*)&xcred) >= 0);
+
+	gnutls_deinit(client);
+	gnutls_deinit(server);
+
+	gnutls_certificate_free_credentials(xcred);
+	gnutls_certificate_free_credentials(clicred);
+	gnutls_global_deinit();
+	delete_temp_files();
+}
+
+void doit(void)
+{
+	start("NORMAL:-VERS-TLS-ALL:+VERS-TLS1.2");
+	start("NORMAL");
+}